想法就像鱼。如果你想抓小鱼，你可以待在浅水区。但如果你想抓大鱼，你必须去更深的地方。

I know that the appearance of Los Angeles at four o 'clock in the morning every day.

Your smarts will come in handy because you will travel in a land of marvels. We humans -- plodding as we are -- will astonish ourselves. We'll invent ways to generate clean energy and a lot of it. Atom by atom， we'll assemble tiny machines that will enter cell walls and make repairs. This month comes the extraordinary but also inevitable news that we've synthesized life. In the coming years， we'll not only synthesize it， but we'll engineer it to specifications. I believe you'll even see us understand the human brain. Jules Verne， Mark Twain， Galileo， Newton -- all the curious from the ages would have wanted to be alive most of all right now. As a civilization， we will have so many gifts， just as you as individuals have so many individual gifts as you sit before me.

言语有治愈的力量，但它们也能深深地伤害。

认知指的是所有感官输入被转换、简化、详细阐述、存储、恢复和使用的过程。